Google Cloud Data Catalog V1 Client - Class ColumnSchema (2.0.1)

Reference documentation and code samples for the Google Cloud Data Catalog V1 Client class ColumnSchema.

A column within a schema. Columns can be nested inside other columns.

Generated from protobuf message google.cloud.datacatalog.v1.ColumnSchema

Namespace

Google \ Cloud \ DataCatalog \ V1

Methods

__construct

Constructor.

Parameters
Name Description
data array

Optional. Data for populating the Message object.
↳ column string

Required. Name of the column. Must be a UTF-8 string without dots (.). The maximum size is 64 bytes.
↳ type string

Required. Type of the column. Must be a UTF-8 string with the maximum size of 128 bytes.
↳ description string

Optional. Description of the column. Default value is an empty string. The description must be a UTF-8 string with the maximum size of 2000 bytes.
↳ mode string

Optional. A column's mode indicates whether values in this column are required, nullable, or repeated. Only NULLABLE, REQUIRED, and REPEATED values are supported. Default mode is NULLABLE.
↳ default_value string

Optional. Default value for the column.
↳ ordinal_position int

Optional. Ordinal position
↳ highest_indexing_type int

Optional. Most important inclusion of this column.
↳ subcolumns array<Google\Cloud\DataCatalog\V1\ColumnSchema>

Optional. Schema of sub-columns. A column can have zero or more sub-columns.
↳ looker_column_spec Google\Cloud\DataCatalog\V1\ColumnSchema\LookerColumnSpec

Looker specific column info of this column.
↳ range_element_type Google\Cloud\DataCatalog\V1\ColumnSchema\FieldElementType

Optional. The subtype of the RANGE, if the type of this field is RANGE. If the type is RANGE, this field is required. Possible values for the field element type of a RANGE include: * DATE * DATETIME * TIMESTAMP
↳ gc_rule string

Optional. Garbage collection policy for the column or column family. Applies to systems like Cloud Bigtable.

getColumn

Required. Name of the column.

Must be a UTF-8 string without dots (.). The maximum size is 64 bytes.

Returns
Type Description
string

setColumn

Required. Name of the column.

Must be a UTF-8 string without dots (.). The maximum size is 64 bytes.

Parameter
Name Description
var string
Returns
Type Description
$this

getType

Required. Type of the column.

Must be a UTF-8 string with the maximum size of 128 bytes.

Returns
Type Description
string

setType

Required. Type of the column.

Must be a UTF-8 string with the maximum size of 128 bytes.

Parameter
Name Description
var string
Returns
Type Description
$this

getDescription

Optional. Description of the column. Default value is an empty string.

The description must be a UTF-8 string with the maximum size of 2000 bytes.

Returns
Type Description
string

setDescription

Optional. Description of the column. Default value is an empty string.

The description must be a UTF-8 string with the maximum size of 2000 bytes.

Parameter
Name Description
var string
Returns
Type Description
$this

getMode

Optional. A column's mode indicates whether values in this column are required, nullable, or repeated.

Only NULLABLE, REQUIRED, and REPEATED values are supported. Default mode is NULLABLE.

Returns
Type Description
string

setMode

Optional. A column's mode indicates whether values in this column are required, nullable, or repeated.

Only NULLABLE, REQUIRED, and REPEATED values are supported. Default mode is NULLABLE.

Parameter
Name Description
var string
Returns
Type Description
$this

getDefaultValue

Optional. Default value for the column.

Returns
Type Description
string

setDefaultValue

Optional. Default value for the column.

Parameter
Name Description
var string
Returns
Type Description
$this

getOrdinalPosition

Optional. Ordinal position

Returns
Type Description
int

setOrdinalPosition

Optional. Ordinal position

Parameter
Name Description
var int
Returns
Type Description
$this

getHighestIndexingType

Optional. Most important inclusion of this column.

Returns
Type Description
int

setHighestIndexingType

Optional. Most important inclusion of this column.

Parameter
Name Description
var int
Returns
Type Description
$this

getSubcolumns

Optional. Schema of sub-columns. A column can have zero or more sub-columns.

Returns
Type Description
Google\Protobuf\Internal\RepeatedField

setSubcolumns

Optional. Schema of sub-columns. A column can have zero or more sub-columns.

Parameter
Name Description
var array<Google\Cloud\DataCatalog\V1\ColumnSchema>
Returns
Type Description
$this

getLookerColumnSpec

Looker specific column info of this column.

Returns
Type Description
Google\Cloud\DataCatalog\V1\ColumnSchema\LookerColumnSpec|null

hasLookerColumnSpec

setLookerColumnSpec

Looker specific column info of this column.

Parameter
Name Description
var Google\Cloud\DataCatalog\V1\ColumnSchema\LookerColumnSpec
Returns
Type Description
$this

getRangeElementType

Optional. The subtype of the RANGE, if the type of this field is RANGE. If the type is RANGE, this field is required. Possible values for the field element type of a RANGE include:

  • DATE
  • DATETIME
  • TIMESTAMP
Returns
Type Description
Google\Cloud\DataCatalog\V1\ColumnSchema\FieldElementType|null

hasRangeElementType

clearRangeElementType

setRangeElementType

Optional. The subtype of the RANGE, if the type of this field is RANGE. If the type is RANGE, this field is required. Possible values for the field element type of a RANGE include:

  • DATE
  • DATETIME
  • TIMESTAMP
Parameter
Name Description
var Google\Cloud\DataCatalog\V1\ColumnSchema\FieldElementType
Returns
Type Description
$this

getGcRule

Optional. Garbage collection policy for the column or column family.

Applies to systems like Cloud Bigtable.

Returns
Type Description
string

setGcRule

Optional. Garbage collection policy for the column or column family.

Applies to systems like Cloud Bigtable.

Parameter
Name Description
var string
Returns
Type Description
$this

getSystemSpec

Returns
Type Description
string